Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.

An underwater voyage has revealed a network of creatures thriving at the bottom of deep-sea ocean trenches, researchers said in a newly published paper. The deep-sea trenches, also called Hadal ...

You are able to gift 5 more articles this month. Anyone can access the link you share with no account required. Learn more. This year, jellyfish have made big news. The 5-foot-wide lion’s mane jelly ...

The ocean is full of incredible surprises, including the darkest, deepest trenches that humans have barely explored. And inside the sea, among these places, live certain creatures with traits that ...